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Mack Truck Parts

Find top-quality Mack truck parts at 4 State Trucks. Upgrade your rig with OE replacements and aftermarket solutions to ensure peak performance and durability. From bumpers and engine parts to fenders, you'll discover everything needed to keep your truck in prime condition. Hit the road confidently with reliable replacement Mack Truck parts.
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Nylon Insert Lock Nut 1/2 Inch - 13 Thread Grade 8

    Nylon Insert Lock Nut 1/2 Inch - 13 Thread Grade 8

    AFTERMARKET

    $1.03
    1/2-13 Coarse Thread Grade 8 Nylon Insert Lock Nut* High Quality Lock Nut* Nylon* 1/2 Inch- 13 Thread * Grade 8* Made In USA* Sold Individually* Warranty On Lock Nuts Against Defects In Workmanship &...
    94580
    SKU:
    94580
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Tools
    Availability:
    Ready To Ship
    $1.03
    Qty in Cart: 0
    Price:
    $1.03
    Subtotal:
  • Hex Head Bolt 5/8-11 Thread X 4 Inch Grade 8

    Hex Head Bolt 5/8-11 Thread X 4 Inch Grade 8

    AFTERMARKET

    $6.23
    Hex Head Cap Screw Full Thread Grade 8 Zinc Yellow* High Quality Hex Head Bolt* Zinc* 4 Inch* 5/8-11 Thread* Grade 8 * Made In USA* Sold Individually* Warranty On Hex Head Bolts Against Defects In...
    92424
    SKU:
    92424
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Tools
    Availability:
    Ready To Ship
    $6.23
    Qty in Cart: 0
    Price:
    $6.23
    Subtotal:
  • 4 X 6 Inch 1 Degree Aluminum Shim Wedge

    4 X 6 Inch 1 Degree Aluminum Shim Wedge

    AUTOMANN USA

    $24.28
    Shim Wedge 1 Degree- 4 Inch X 6 InchEnsure accurate suspension adjustments with the 4 x 6 Inch 1 Degree Aluminum Shim Wedge. Crafted from strong aluminum, this 4 x 6-inch wedge offers a precise...
    30-05090012
    SKU:
    30-05090012
    Truck Class:
    Heavy Duty
    Material Options:
    Aluminum
    Make:
    Bus
    Product Type:
    Frame & Chassis
    Availability:
    Ready To Ship
    $24.28
    Qty in Cart: 0
    Price:
    $24.28
    Subtotal:
  • 9 Inch Diameter Muffler 5 Inch ID / OD X 52 Inch OAL

    9 Inch Diameter Muffler 5 Inch ID / OD X 52 Inch OAL

    AFTERMARKET

    $270.99
    9 Inch Diameter Stack Muffler With 5 Inch Inlet And Outlet With Interior BaffleExperience quieter, more efficient exhaust with the 9 Inch Diameter Muffler, crafted for heavy-duty trucks that demand...
    29-08020002
    SKU:
    29-08020002
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Length Options:
    52 Inch
    Make:
    Universal Items
    Product Type:
    Exhaust
    $270.99
    Qty in Cart: 0
    Price:
    $270.99
    Subtotal:
  • O- Ring Seal 90 Duro, 1.15 OD, 0.984 ID

    O- Ring Seal 90 Duro, 1.15 OD, 0.984 ID

    AUTOMANN USA

    $1.20
    O- Ring Seal Replaces 3D2824, 3H6850, 8U0222* High Quality O- Ring Seal Caterpillar* Dimensions:  - 1.15 Inch OD  - 0.984 Inch ID* 90 Durometer* Sold Individually* Warranty On O- Ring Seal...
    29-07200007
    SKU:
    29-07200007
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1.20
    Qty in Cart: 0
    Price:
    $1.20
    Subtotal:
  • Rear Alignment Eccentric Collar For Blue Bird, HIno

    Rear Alignment Eccentric Collar For Blue Bird, HIno

    BESTFIT TRUCK PARTS

    $18.50
    Hendrickson Eccentric Alignment Collar Replaces 64096, 64096000, 64096-000, 64632, 64632000, 64632-000This eccentric alignment collar has a 3.7-inch outer diameter and a 1.234-inch inner diameter. It...
    29-05100341
    SKU:
    29-05100341
    Truck Class:
    Heavy Duty
    Material Options:
    Brass
    Make:
    Hino
    Make:
    Bus
    Product Type:
    Frame & Chassis
    $18.50
    Qty in Cart: 0
    Price:
    $18.50
    Subtotal:
  • Oil Cooler Gasket Kit For Paccar MX11 MX13

    Oil Cooler Gasket Kit For Paccar MX11 MX13

    AUTOMANN USA

    $24.67
    Oil Cooler Gasket Kit Replaces 1643076Pe, 279.590, 1643076* High Quality Oil Cooler Gasket Kit* Sold Individually* Warranty On Oil Cooler Gasket Kits Against Defects In Workmanship & Material From...
    29-07120056
    SKU:
    29-07120056
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $24.67
    Qty in Cart: 0
    Price:
    $24.67
    Subtotal:
  • 47 Inch Oil Pan Gasket For Detroit 60 Series

    47 Inch Oil Pan Gasket For Detroit 60 Series

    AUTOMANN USA

    $38.33
    Detroit Series 60 Oil Pan Seal Replaces DDE23522279, 23522279, DDE23539104, And 23539104Avoid engine damage and maintain proper oil levels with this 47-Inch Oil Pan Gasket for Detroit 60 Series...
    29-0720006
    SKU:
    29-0720006
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $38.33
    Qty in Cart: 0
    Price:
    $38.33
    Subtotal:
  • Trunnion Bushing 3.5 ID X 4.5 OD X 3.5 Inch

    Trunnion Bushing 3.5 ID X 4.5 OD X 3.5 Inch

    AUTOMANN USA

    $13.98
    Trunnion Bushing E1334, R301334, 91008040, TA802A, And 15875* High Quality Trunnion Bushing* Dimensions:  - 3.5 Inch ID   - 4.5 Inch OD   - 3.5 Inch Length* Sold Individually* Warranty On Trunnion...
    29-05250050
    SKU:
    29-05250050
    Truck Class:
    Heavy Duty
    Diameter Options:
    3 1/2 Inch
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $13.98
    Qty in Cart: 0
    Price:
    $13.98
    Subtotal:
  • 10 Inch Diameter Stack Muffler 5 ID / OD X 51.5 Inch OAL

    10 Inch Diameter Stack Muffler 5 ID / OD X 51.5 Inch OAL

    AFTERMARKET

    $155.99
    10 Inch Diameter Stack Muffler With 5 Inch Inlet And OutletOptimize your truck's exhaust system with the 10 Inch Diameter Stack Muffler, a high-quality, aluminized steel muffler built for longevity...
    29-08020001
    SKU:
    29-08020001
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Kenworth
    Make:
    Peterbilt
    Make:
    Mack
    Make:
    Volvo
    Product Type:
    Exhaust
    Availability:
    Ready To Ship
    $155.99
    Qty in Cart: 0
    Price:
    $155.99
    Subtotal:
  • Oil Drain Plug O-Ring # 203 - Replaces1093207, 1814695C1

    Oil Drain Plug O-Ring # 203 - Replaces1093207, 1814695C1

    AUTOMANN USA

    $1.93
    Oil Pan Drain Plug O-Ring 0.925 ID X 1.19 OD* High Quality O-Ring Seal* Dimensions:  - 0.925 Inch I.D.  - 1.19 Inch O.D.* Sold Individually* Warranty On O-Ring Seals Against Defects In Workmanship &...
    29-07200003
    SKU:
    29-07200003
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1.93
    Qty in Cart: 0
    Price:
    $1.93
    Subtotal:
  • O- Ring Seal 90 Duro, 0.62 OD, 0.5 ID For Caterpillar Engine

    O- Ring Seal 90 Duro, 0.62 OD, 0.5 ID For Caterpillar Engine

    AUTOMANN USA

    $1.20
    Caterpillar O- Ring Seal Replaces 0336042, 321229* High Quality O- Ring Seal Caterpillar* Dimensions:  - 0.625 Inch OD  - 0.5 Inch ID* 90 Durometer* Sold Individually* Warranty On O- Ring Seal...
    29-07200006
    SKU:
    29-07200006
    Truck Class:
    Heavy Duty
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $1.20
    Qty in Cart: 0
    Price:
    $1.20
    Subtotal:
  • 5 3/4 Inch End Beam Bushing Assembly For Hendrickson 480-520 Series

    5 3/4 Inch End Beam Bushing Assembly For Hendrickson 480-520 Series

    AFTERMARKET

    $180.99
    Hendrickson End Beam Bushing Assembly* High Quality End Beam Bushing Assembly* Consists Of   - (1) End Beam Bushing   - (1) Adapter Kit* 5 3/4 Inch* Made In USA* Sold Individually* Warranty On End...
    29-05100284
    SKU:
    29-05100284
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • Engine Oil Cooler Gasket For DD13 DD15 DD16, Elring Original

    Engine Oil Cooler Gasket For DD13 DD15 DD16, Elring Original

    AFTERMARKET

    $50.99
    Oil Cooler Gasket Replaces 003.100, A4721841980, 003100V* High Quality Oil Cooler Gasket* Sold Individually* Warranty On Oil Cooler Gaskets Against Defects In Workmanship & Material From Date Of...
    29-07120055
    SKU:
    29-07120055
    Truck Class:
    Heavy Duty
    Material Options:
    Rubber
    Make:
    Universal Items
    Product Type:
    Engine Parts
    $50.99
    Qty in Cart: 0
    Price:
    $50.99
    Subtotal:
  • 5 3/4 Inch Poly End Beam Bushing Assembly For Hendrickson 340-460 Series

    5 3/4 Inch Poly End Beam Bushing Assembly For Hendrickson 340-460 Series

    AFTERMARKET

    $201.99
    OEM Style Hendrickson End Beam Bushing Assembly* High Quality End Beam Bushing Assembly* 5-3/4 Inch Bushing* Sold Individually* Warranty On End Beam Bushing Assemblies Against Defects In Workmanship...
    29-05100260
    SKU:
    29-05100260
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $201.99
    Qty in Cart: 0
    Price:
    $201.99
    Subtotal:
  • Poly V Steer Bushing 15 ID X 2.5 OD X 3.25 Inch OAL

    Poly V Steer Bushing 15 ID X 2.5 OD X 3.25 Inch OAL

    AFTERMARKET

    $65.99
    V Steer Bushing Replaces 90008203* High Quality V Steer Bushing* Poly* Dimensions:  - 1.5 Inch ID   - 2.5 Inch OD   - 3.25 Inch Overall Length* Sold Individually* Warranty On V Steer Bushings Against...
    29-05250049
    SKU:
    29-05250049
    Material Options:
    Plastic/Poly
    Diameter Options:
    1 1/2 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • Concentric Alignment Collar For Blue Bird, HIno

    Concentric Alignment Collar For Blue Bird, HIno

    BESTFIT TRUCK PARTS

    $18.50
    Concentric Collar Replaces E15716, 64097000, 64633000, 646633000, R3015716* High Quality Concentric Collar* Dimensions:  - 3.70 Inch Overall Outer Diameter  - 1.044 Inch Tube Height  - 1.234 Inch...
    29-05100342
    SKU:
    29-05100342
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Bus
    Make:
    Hino
    Product Type:
    Frame & Chassis
    $18.50
    Qty in Cart: 0
    Price:
    $18.50
    Subtotal:
  • 5 3/4 Inch End Beam Bushing Assembly For Hendrickson 463 and 503 Series

    5 3/4 Inch End Beam Bushing Assembly For Hendrickson 463 and 503 Series

    AFTERMARKET

    $170.99
    End Beam Bushing Assembly Hendrickson* High Quality End Beam Bushing Assembly* Consists Of   - (1) End Beam Bushing   - (1) Adapter Kit* 5 3/4 Inch* Made In USA* Sold Individually* Warranty On End...
    29-05100283
    SKU:
    29-05100283
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $170.99
    Qty in Cart: 0
    Price:
    $170.99
    Subtotal:
  • 5 3/4 Inch Poly Rear End Beam Bushing Assembly For Hendrickson 340-460 Series

    5 3/4 Inch Poly Rear End Beam Bushing Assembly For Hendrickson 340-460 Series

    AFTERMARKET

    $200.99
    Hendrickson 5 3/4 Inch Poly End Beam Bushing Assembly* High Quality End Beam Bushing Assembly* Includes:  - (1) End Beam Bushing  - (1) Adapter Kit* Made Of Polycarbonate * Bushing Dimensions:  -...
    29-05100259
    SKU:
    29-05100259
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $200.99
    Qty in Cart: 0
    Price:
    $200.99
    Subtotal:
  • 3 Inch Poly Rear Silent Block Spring Bushing Replaces 6803220150 For Flex Air Models, Spring Eye

    3 Inch Poly Rear Silent Block Spring Bushing Replaces 6803220150 For Flex Air Models, Spring Eye

    AFTERMARKET

    $88.99
    Poly Silent Block Bushing Replaces 51880, 51880-000, C136002, C13-6002, K2215089, K221-5089Restore suspension efficiency with this 3 Inch Poly Rear Silent Block Spring Bushing. Designed for Flex Air...
    29-05100233
    SKU:
    29-05100233
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $88.99
    Qty in Cart: 0
    Price:
    $88.99
    Subtotal:
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Adding your products to cart

Frequently Asked Questions About Mack Truck Parts

What Mack truck models and years are your parts compatible with?

Our Mack truck parts cover a wide range of models including the Anthem, Pinnacle, Granite, and older CH, CL, and Vision series. Most of our parts fit trucks from 1990 to current model years. Each product listing includes specific model and year compatibility information. For older Mack models like the R-Model or Superliner, availability is more limited but we do carry select restoration parts. Always check the product description or contact our team with your OEM for exact fitment verification.

Are aftermarket Mack parts as reliable as OEM parts?

We carry both genuine OEM Mack parts and high-quality aftermarket alternatives. Our aftermarket parts are manufactured to meet or exceed OEM specifications and often come from the same suppliers that manufacture for Mack. Chrome bumpers, for example, typically feature triple-chrome plating with proper nickel and copper base layers for durability. Many customers choose aftermarket options for better pricing without sacrificing quality. All parts come with manufacturer warranties, typically ranging from 1 to 3 years depending on the component.

What tools and skills do I need to install Mack truck parts myself?

Installation difficulty varies by part type. Basic items like mirrors, grab handles, and light bars typically require standard hand tools and can be installed in 30-60 minutes. Bumpers and grilles usually need two people, basic mechanical skills, and may require drilling for non-OEM replacements. Engine components, electrical parts, and suspension items often require specialized tools and professional installation. We provide installation instructions when available, and our tech support can guide you on whether a part is DIY-friendly for your skill level.

How do I choose between chrome, stainless steel, and painted finishes?

Chrome provides the classic polished look but requires regular maintenance to prevent pitting and rust, especially in northern climates with road salt. Stainless steel offers excellent corrosion resistance with less maintenance but costs 20-30% more than chrome. Painted finishes are most economical and can be color-matched to your truck but may need repainting after 5-7 years. For work trucks in harsh conditions, we recommend stainless steel. For show trucks or mild climates, chrome delivers the best appearance. Consider your climate, maintenance schedule, and budget when choosing.

What is your return policy if a part doesn't fit my Mack truck?

We accept returns on most Mack truck parts within 30 days of purchase if they're unused and in original packaging. Electrical parts, custom-ordered items, and clearance parts are non-returnable. If a part doesn't fit due to our error in listing compatibility, we cover return shipping. For customer-ordered incorrect parts, you're responsible for return shipping costs. We recommend double-checking fitment before ordering, and our customer service team is available at 1-417-775-7878 to verify compatibility before you purchase.


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